linux-kernel - [PATCH v3][RESEND #2] scripts: use pkg-config to locate libcrypto

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Message-ID: <3291155.4g3vBG3qv5@devpool35>
Date:   Fri, 29 Nov 2019 08:56:34 +0100
From:   Rolf Eike Beer <eb@...ix.com>
To:     David Woodhouse <dwmw2@...radead.org>
Cc:     Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>, keyrings@...r.kernel.org
Subject: [PATCH v3][RESEND #2] scripts: use pkg-config to locate libcrypto

Otherwise build fails if the headers are not in the default location. While at
it also ask pkg-config for the libs, with fallback to the existing value.

Signed-off-by: Rolf Eike Beer <eb@...ix.com>
Cc: stable@...r.kernel.org
---
 scripts/Makefile | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile b/scripts/Makefile
index 3e86b300f5a1..034789783317 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -8,7 +8,11 @@
 # conmakehash:   Create chartable
 # conmakehash:	 Create arrays for initializing the kernel console tables
 
+PKG_CONFIG?= pkg-config
+
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+CRYPTO_LIBS = $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
+CRYPTO_CFLAGS = $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null)
 
 hostprogs-$(CONFIG_BUILD_BIN2C)  += bin2c
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
@@ -23,8 +27,9 @@ hostprogs-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert
 
 HOSTCFLAGS_sortextable.o = -I$(srctree)/tools/include
 HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
-HOSTLDLIBS_sign-file = -lcrypto
-HOSTLDLIBS_extract-cert = -lcrypto
+HOSTLDLIBS_sign-file = $(CRYPTO_LIBS)
+HOSTCFLAGS_extract-cert.o = $(CRYPTO_CFLAGS)
+HOSTLDLIBS_extract-cert = $(CRYPTO_LIBS)
 
 always		:= $(hostprogs-y) $(hostprogs-m)
 
-- 
2.24.0


-- 
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
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